The insulated spheres of radii ${R_1}$ and ${R_2}$ having charges ${Q_1}$and ${Q_2}$ respectively are connected to each other. There is
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(d) When $\frac{{{Q_1}}}{{{R_1}}} \ne \frac{{{Q_2}}}{{{R_2}}};$ current will flow in connecting wire so that energy decreases in the form of heat through the connecting wire.
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